Chosen Solution

Is there any way to unregister this device

Once you deregister the device you should be good to go. Are you able to get it to turn on and use it at all? What’s happening? I have a Kindle Fire, it’s maybe 10 years old, and it still does the trick as far as eReaders go. Though it’s not great for 3rd party apps anymore. To deregister a Fire tablet: Swipe down from the top of the screen and tap the Settings (gear) icon.Tap My Account.Tap Deregister, then tap Deregister again to confirm.